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12430685 = 52486137
BaseRepresentation
bin101111011010…
…110101011101
3212101112200202
4233122311131
511140240220
61122233245
7210442031
oct57326535
925345622
1012430685
1170203a3
1241b5825
132763047
1419181c1
151158275
hexbdad5d

12430685 has 4 divisors (see below), whose sum is σ = 14916828. Its totient is φ = 9944544.

The previous prime is 12430681. The next prime is 12430703. The reversal of 12430685 is 58603421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2229049 + 10201636 = 1493^2 + 3194^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430685 - 22 = 12430681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243064 + ... + 1243073.

It is an arithmetic number, because the mean of its divisors is an integer number (3729207).

Almost surely, 212430685 is an apocalyptic number.

It is an amenable number.

12430685 is a deficient number, since it is larger than the sum of its proper divisors (2486143).

12430685 is an equidigital number, since it uses as much as digits as its factorization.

12430685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486142.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 12430685 is about 3525.7176574422. The cubic root of 12430685 is about 231.6496706703.

The spelling of 12430685 in words is "twelve million, four hundred thirty thousand, six hundred eighty-five".

Divisors: 1 5 2486137 12430685